perfect number
perfect number noun: a number that is the sum of all of its divisors except itself.
Noun
perfect number (plural perfect numbers)
- A number that is the sum of all of its divisors except itself.
- The factors of 6 are 1, 2, 3 and 6, and 1 + 2 + 3 = 6, so 6 is a perfect number.
- The factors of 28 are 1, 2, 4, 7, 14 and 28, and 1 + 2 + 4 + 7 + 14 = 28, so 28 is a perfect number.
perfect number meaning in Tamil and Tagalog
perfect number in Tamil
- செவ்விய எண்
perfect number in Tagalog
- a number that is the sum of all of its divisors except itself
- himpit na bilang
Forms of perfect number
| plural | perfect numbers |
|---|
Origin of perfect number
Calque of Latin numerus perfectus, with this use of perfectus itself a semantic loan from Ancient Greek τέλειος (téleios).
Words formed from perfect number
Questions about perfect number
- What does perfect number mean?
- Perfect number means a number that is the sum of all of its divisors except itself.
- What is perfect number in Tamil?
- Perfect number in Tamil is செவ்விய எண். See Perfect number meaning in Tamil.
- What part of speech is perfect number?
- Perfect number is a noun.
- What is the plural of perfect number?
- The plural of perfect number is perfect numbers.
Words near perfect number in the dictionary
Source and license
Adapted from Wiktionary: perfect number (page history and authors); perfect number (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-perfect number.wav.
Cite this entry: “perfect number.” Word.ws, https://word.ws/perfect_number. Based on Wiktionary, CC BY-SA 4.0.